There is no branch of government with the authority to redefine marriage. Marriage is older than government.

Well then, I expect to hear OSC call for the repeal of Loving v. Virginia, since that was clearly out of the government's jurisdiction.

Its meaning is universal: It is the permanent or semipermanent bond between a man and a woman, establishing responsibilities between the couple and any children that ensue.

That noise you hear is my inner anthropologist screaming in the corner. An afternoon with any halfway decent study of marriage would show that this isn't true.